Independent and unbiased 2026 pricing data
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Washington, DC

French Drain Cost in Washington

Estimated french drain cost in Washington

$2,250–$6,700

Roughly about 28% above the national average.

High labor rates and strict permitting raise costs.

Estimate your cost

Based on Washington, DC pricing.

Estimated cost range

$2,250–$6,700

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An estimate for planning, not a quote. Get written quotes from local pros below.

Estimate, not a quote. Local prices vary by contractor and project. These are 2026 estimates for Washington, DC. Get written quotes from licensed Washington contractors before you budget.

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212 Main Perforated Flexible Drain Pipe, 4" x 25'
212 Main 212 Main Perforated Flexible Drain Pipe, 4" x 25'

$48.85

Corrugated perforated pipe to carry water away from the foundation.

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LAVEVE Landscape Fabric Weed Barrier, 4x100
LAVEVE LAVEVE Landscape Fabric Weed Barrier, 4x100

$29.99

Heavy 3.2oz fabric to wrap the gravel and keep silt out of the pipe.

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MIGHTY109 Grey Pea Gravel, 40 lb
MIGHTY109 MIGHTY109 Grey Pea Gravel, 40 lb

$59.99

Washed drainage rock to bed and backfill the trench.

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NDS 12" Square Catch Basin Drain Kit
NDS NDS 12" Square Catch Basin Drain Kit

$69.75

Catch basin with grate and adapters for surface water collection.

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What to know about french drain in Washington

Frost heave and freeze-thaw in Washington can stress foundations, so good drainage and proper footing depth matter for a lasting result.

What affects french drain cost in Washington

Beyond the local market, the same factors that drive french drain cost everywhere apply in Washington:

  • Length and depth of the drain.
  • Type: yard, interior basement, or exterior foundation.
  • Soil conditions and digging difficulty.
  • Landscaping or concrete to remove and restore.

French Drain cost by drain type in Washington

These figures are adjusted for Washington pricing (about 1.28x the national average), so they reflect what local homeowners actually pay.

Estimated french drain cost by drain type in Washington (2026)
Drain type Cost in Washington Typical total
Surface / yard drain $22.40 to $67.20 /ft About $2,250 to $6,700
Footing / interior basement $44.80 to $134 /ft About $4,500 to $13,400
Exterior foundation $51.20 to $154 /ft About $5,100 to $15,400

French Drain cost in Washington vs other metros

How a french drain in Washington compares with nearby and similar-cost metros, using 2026 local estimates.

Metro Estimated french drain cost vs national
Washington, DC $2,250–$6,700 about 28% above the national average
San Diego, CA $2,300–$6,850 about 30% above the national average
Boston, MA $2,300–$6,850 about 30% above the national average
Seattle, WA $2,300–$6,950 about 32% above the national average
Chicago, IL $2,100–$6,300 about 20% above the national average
Sacramento, CA $2,050–$6,200 about 18% above the national average

Frequently asked questions

How much does french drain cost in Washington?

In Washington, DC, french drain typically costs $2,250 to $6,700 in 2026 for a standard project, about 28% above the national average. Your exact price depends on size, materials, and scope.

Why does french drain cost more or less in Washington?

High labor rates and strict permitting raise costs. Labor rates, permit costs, and local demand are the main reasons Washington prices differ from the national average.

Do I need a permit for french drain in Washington?

Most french drain projects require a permit. Requirements vary by city and District of Columbia jurisdiction, so confirm with your local building department. A licensed contractor usually pulls the permit for you.

When is the best time of year for french drain in Washington?

In Washington, exterior work is easiest from late spring through early fall. Winter weather can delay roofing, siding, concrete, and foundation jobs, and some crews book up fast once the weather breaks.

Is french drain cheaper outside Washington?

Sometimes. Washington runs about 28% above the national average. Nearby smaller towns with lower labor costs can come in cheaper, while denser urban areas often cost more. Always compare quotes from contractors who serve your specific area.

French Drain cost in other cities

See the national French Drain cost guide